Cofferdam device for highway bridge construction

Abstract

The utility model relates to the technical field of highway bridge construction, and discloses a highway bridge construction cofferdam device which comprises a cofferdam baffle, two fixing bases are symmetrically arranged on one side of the cofferdam baffle, and connecting components and fine adjustment assemblies are connected between the two fixing bases and the cofferdam baffle. The splicing mechanism comprises a top locking assembly and a bottom inserting assembly which are used for connecting the tops and the bottoms of the multiple cofferdam baffles correspondingly. The top locking assembly comprises top inserting grooves symmetrically formed in the two sides of the top of the cofferdam baffle and a locking piece arranged at the top end of the cofferdam baffle. According to the cofferdam device, through the arrangement of the splicing mechanism, the multiple cofferdam baffles can be spliced in the horizontal direction to achieve extension of the cofferdam baffles, the multiple cofferdam baffles can be vertically spliced to achieve assembly of the multiple cofferdam baffles, multiple faces of a foundation pit can be conveniently enclosed, and therefore the applicability of the cofferdam device is greatly improved; and different construction requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of highway bridge construction, in particular to a highway bridge construction cofferdam device. Background Art

[0002] During the construction of highway bridges, temporary cofferdam structures are usually built to prevent water and soil from entering the construction site of the highway bridge, and to facilitate drainage and excavation of foundation pits within the cofferdam, which is beneficial to the construction of the highway bridge.

[0003] In a Chinese patent with announcement number CN220132949U, a highway bridge construction cofferdam device is disclosed. After the cofferdam body is fixed, the first sliding block and the second sliding block can be placed in the vacant installation groove in sequence. After the first sliding block is fixed inside the installation groove, the support rod outside the rotating shaft is rotated to make it at a suitable angle to provide support for the fixing rod, and then the second sliding block is fixed inside the installation groove. When the second sliding block is fixed, the positioning pile inside the fixing ring is fixed into the ground, so that the upper end of the fixing rod is more stable under the pulling action of the pulling rope, so as to avoid the water pressure increasing after the cofferdam height is too deep, and the upper end is unstable, causing the fixing rod to deviate and leak. However, the above-mentioned highway bridge construction cofferdam device lacks a splicing structure in actual use. When the length of the cofferdam body is insufficient, or when multi-sided enclosure of the foundation pit is required, it is difficult to quickly splice the cofferdam body, resulting in poor applicability of the cofferdam body, which cannot meet different construction requirements and affects the practicality of the cofferdam device. Utility Model Content

[0004] The utility model proposes a highway bridge construction cofferdam device to solve the problem that the existing cofferdam device lacks a splicing structure. When the cofferdam baffle is not long enough or multi-sided protection of the foundation pit is required, it is difficult to quickly splice the cofferdam baffle, resulting in poor applicability of the cofferdam baffle and failure to meet different construction requirements.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a highway bridge construction cofferdam device, comprising:

[0006] A cofferdam baffle, wherein two fixing seats are symmetrically arranged on one side of the cofferdam baffle, and connecting members and fine-tuning components are connected between the two fixing seats and the cofferdam baffle, and a triangle is formed between the connecting member, the fine-tuning component and the cofferdam baffle, which is conducive to the stable installation of the cofferdam baffle;

[0007] A splicing mechanism, the splicing mechanism comprising a top locking assembly and a bottom plug-in assembly for respectively connecting the tops and bottoms of a plurality of cofferdam baffles;

[0008] The top locking assembly includes top plug-in grooves symmetrically arranged on both sides of the top of the cofferdam baffle and a locking piece arranged on the top of the cofferdam baffle, and the locking piece can be inserted into the top plug-in groove;

[0009] The bottom plug-in assembly includes a first bottom plug-in column installed on one side of the bottom of the cofferdam baffle and a first bottom plug-in groove opened on the bottom of the cofferdam baffle on the side opposite to the first bottom plug-in column. The cofferdam baffle is symmetrically provided with a second bottom plug-in column and a second bottom plug-in groove on one side opposite to the fine-tuning assembly, and the second bottom plug-in groove is connected to the first bottom plug-in groove.

[0010] Preferably, the locking member includes a mounting frame installed on the top of the cofferdam baffle and a connecting plate arranged in the mounting frame. The top of the cofferdam baffle is also threaded with a locking screw, and the bottom end of the locking screw extends into the mounting frame and is rotatably connected to the top of the connecting plate. Three top plug-in columns are installed at the bottom of the connecting plate, and the top plug-in columns are plugged and fixed to the top plug-in grooves. A turning disk is installed at the top of the locking screw to facilitate the rotation of the locking screw.

[0011] Preferably, the bottom plug-in assembly also includes a snap-in component, which includes a snap-in strip installed around the outer walls of the first bottom plug-in column and the second bottom plug-in column, and the inner walls of the first bottom plug-in slot and the second bottom plug-in slot are both provided with snap-in slots corresponding to the snap-in strips, and the snap-in strips are snap-fitted and fixed to the snap-in slots.

[0012] Preferably, the top locking assembly further comprises a limiting member, which comprises a limiting strip installed around the inner wall of the top plug-in slot and a limiting slot provided around the outer wall of the top plug-in column, wherein the limiting strip can be slidably inserted into the limiting slot.

[0013] Preferably, the connecting member comprises a first hinged seat mounted on the side wall of the cofferdam baffle and a second hinged seat fixed on the top of the fixed seat, and a retractable reinforcing rod is hinged between the second hinged seat and the first hinged seat.

[0014] Preferably, the fine-tuning assembly includes a mounting block fixed on the side wall of the cofferdam baffle and a fixed block mounted on a fixed seat, a connecting rod is hinged in the mounting block, and a sleeve is rotatably connected to one end of the connecting rod away from the mounting block, a threaded rod is installed on one side of the fixed block relative to the second hinged seat, a threaded cavity is provided in the sleeve, and one end of the threaded rod is threaded into the threaded cavity.

[0015] Preferably, three retractable linkage rods are connected between the top of the connecting plate and the mounting frame, and the three linkage rods are distributed in a triangle.

[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0017] (1) Through the setting of the splicing mechanism, when in use, not only can multiple cofferdam baffles be spliced ​​in the horizontal direction to achieve the extension of the cofferdam baffles, but also multiple cofferdam baffles can be spliced ​​vertically to achieve the assembly of multiple cofferdam baffles, which is convenient for fencing multiple sides of the foundation pit, thereby greatly increasing the applicability of the cofferdam device, being able to meet different construction requirements, and being conducive to the construction of highway bridges;

[0018] (2) By setting the clamping parts and the limiting components, the tops and bottoms of the multiple cofferdam baffles can be respectively plugged in and fixed, so as to realize reinforcement when the multiple cofferdam baffles are spliced, which is beneficial to improve the stability of the multiple cofferdam baffles during assembly and facilitate the stable use of the cofferdam device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is one of the structural diagrams of the utility model;

[0021] Figure 2 For this utility model Figure 1 Schematic diagram of the structure after the middle top plug-in column is adjusted;

[0022] Figure 3 This is the second structural diagram of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the fine-tuning component of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the fine-tuning component of the utility model after adjustment;

[0025] Figure 6 For this utility model Figure 4 A partial cross-sectional view of

[0026] Figure 7 For this utility model Figure 5 A partial cross-sectional view of

[0027] Figure 8 This is one of the schematic diagrams of the structure of the utility model when splicing;

[0028] Fig. 9 This is the second structural diagram of the utility model when splicing;

[0029] In the figure: 1. cofferdam baffle; 2. mounting frame; 3. locking screw; 4. connecting plate; 5. top plug-in column; 6. first bottom plug-in column; 7. second bottom plug-in column; 8. fixing seat; 9. fine-tuning assembly; 91. connecting rod; 92. sleeve; 93. screw rod; 94. fixing block; 95. mounting block; 10. reinforcing rod; 11. first hinge seat; 12. second hinge seat; 13. top plug-in slot; 14. limit strip; 15. limit slot; 16. clamping strip; 17. first bottom plug-in slot; 18. second bottom plug-in slot. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] The utility model provides Figure 1-Figure 7 A highway bridge construction cofferdam device is shown, comprising:

[0032] The cofferdam baffle 1 has two fixed seats 8 symmetrically arranged on one side of the cofferdam baffle 1, and connecting members and fine-tuning components 9 are connected between the two fixed seats 8 and the cofferdam baffle 1;

[0033] A splicing mechanism, the splicing mechanism comprising a top locking assembly and a bottom plug-in assembly for respectively connecting the tops and bottoms of the plurality of cofferdam baffles 1;

[0034] The top locking assembly includes top plug-in grooves 13 symmetrically arranged on both sides of the top of the cofferdam baffle 1 and a locking member arranged on the top of the cofferdam baffle 1, and the locking member can be inserted into the top plug-in groove 13;

[0035] The bottom plug-in assembly includes a first bottom plug-in column 6 installed on one side of the bottom of the cofferdam baffle 1 and a first bottom plug-in groove 17 opened on the bottom of the cofferdam baffle 1 on the side relative to the first bottom plug-in column 6. The cofferdam baffle 1 is symmetrically provided with a second bottom plug-in column 7 and a second bottom plug-in groove 18 on one side relative to the fine-tuning assembly 9, and the second bottom plug-in groove 18 is connected to the first bottom plug-in groove 17.

[0036] Specifically, Figure 1-Figure 3 As shown, the connecting member includes a first hinge seat 11 installed on the side wall of the cofferdam baffle 1 and a second hinge seat 12 fixed on the top of the fixed seat 8, and a retractable reinforcing rod 10 is hinged between the second hinge seat 12 and the first hinge seat 11.

[0037] Specifically, Figure 1-Figure 7As shown, the fine-tuning assembly 9 includes a mounting block 95 fixed on the side wall of the cofferdam baffle 1 and a fixing block 94 installed on the fixing seat 8, a connecting rod 91 is hinged in the mounting block 95, and the end of the connecting rod 91 away from the mounting block 95 is rotatably connected to a sleeve 92, a screw rod 93 is installed on the side of the fixing block 94 relative to the second hinged seat 12, a screw cavity is provided in the sleeve 92, and one end of the screw rod 93 is screwed into the screw cavity.

[0038] Before the construction of the cofferdam of the highway bridge, the angle of the cofferdam baffle 1 can be adjusted according to the actual construction requirements, that is, the sleeve 92 is rotated to move along the screw rod 93, and the cofferdam baffle 1 is pulled or pushed by the connecting rod 91 to tilt the cofferdam baffle 1 to the required angle. At the same time, the retractable reinforcing rod 10 is retracted and retracted as the angle of the cofferdam baffle 1 changes;

[0039] When constructing a cofferdam for a highway bridge, first insert the bottom of the cofferdam baffle 1 into the mud and sand, and fix the two fixing seats 8 to the ground by fastening bolts. At this time, the connecting member and the fine-tuning assembly 9 stably support the cofferdam baffle 1, so that the cofferdam baffle 1 encloses the construction position of the highway bridge, facilitating the excavation of the foundation pit and the subsequent construction of highway bridge facilities.

[0040] At the same time, during the cofferdam process, if the cofferdam baffle 1 is not long enough and needs to be spliced, Figure 8 As shown, multiple cofferdam baffles 1 can be connected in sequence, so that the first bottom plug-in column 6 on one side of the cofferdam baffle 1 is inserted into the first bottom plug-in groove 17 on the side of another cofferdam baffle 1, so as to splice two adjacent cofferdam baffles 1, and then insert the locking piece into the top plug-in groove 13 on the top of the two adjacent cofferdam baffles 1, so as to install and fix the two adjacent cofferdam baffles 1, complete the splicing of multiple cofferdam baffles 1, and then insert the bottom of the multiple cofferdam baffles 1 into the mud and sand, and install the fixing seat 8 on the ground, so that the multiple cofferdam baffles 1 are stably fixed as a whole, meeting the construction requirements of highway bridges;

[0041] In addition, when it is necessary to fence multiple sides of the highway bridge foundation pit, such as Fig. 9 As shown, two cofferdam baffles 1 can be vertically docked on one side of another cofferdam baffle 1, and the three cofferdam baffles 1 can be spliced ​​together through the mutual cooperation between the first bottom plug-in column 6, the second bottom plug-in groove 18, the second bottom plug-in column 7 and the first bottom plug-in groove 17, and the spliced ​​cofferdam baffles 1 are installed and fixed by locking members, and then the whole composed of three cofferdam baffles 1 is installed and fixed by the fixing seat 8 to meet the construction requirements of highway bridges, thereby realizing the rapid splicing of multiple cofferdam baffles 1, which can meet different construction requirements, is conducive to improving the efficiency of cofferdam construction, and facilitates the subsequent construction of highway bridges.

[0042] Furthermore, if Figure 1-Figure 3As shown, the locking member includes a mounting frame 2 installed on the top of the cofferdam baffle 1 and a connecting plate 4 arranged in the mounting frame 2. A locking screw 3 is also screwed on the top of the cofferdam baffle 1, and the bottom end of the locking screw 3 extends into the mounting frame 2 and is rotatably connected to the top of the connecting plate 4. Three top plug-in columns 5 are installed at the bottom of the connecting plate 4, and the top plug-in columns 5 are plugged and fixed to the top plug-in grooves 13.

[0043] When installing and fixing the spliced ​​cofferdam baffles 1, the locking screw 3 on the mounting frame 2 can be rotated so that the locking screw 3 drives the connecting plate 4 to descend in the mounting frame 2. At this time, the connecting plate 4 drives the top plug-in column 5 at its bottom to be inserted into the top plug-in groove 13 at the top of the cofferdam baffle 1, so as to realize the installation and fixation of multiple cofferdam baffles 1, which is beneficial to the splicing and assembly of the cofferdam baffles 1. When disassembling, it is only necessary to rotate the locking screw 3 in the opposite direction so that the locking screw 3 drives the top plug-in column 5 to rise through the connecting plate 4 and disengage from the top plug-in groove 13, and then pull the multiple cofferdam baffles 1 separately to realize the disassembly of the multiple cofferdam baffles 1.

[0044] Furthermore, if Figure 2 As shown, three retractable linkage rods are connected between the top of the connecting plate 4 and the mounting frame 2, and the three linkage rods are distributed in a triangle.

[0045] When the connecting plate 4 drives the top plug-in column 5 to rise and fall, the three linkage rods can be extended and retracted accordingly to increase the stability of the connecting plate 4 during the rising and falling, which is conducive to the connecting plate 4 driving the top plug-in column 5 to rise and fall stably and facilitates the disassembly and assembly of multiple cofferdam baffles 1.

[0046] In addition, in one embodiment, if Figure 1-Figure 3 As shown, the bottom plug-in assembly also includes a snap-in component, which includes a snap-in strip 16 installed around the outer walls of the first bottom plug-in column 6 and the second bottom plug-in column 7, and the inner walls of the first bottom plug-in groove 17 and the second bottom plug-in groove 18 are each provided with a snap-in groove corresponding to the snap-in strip 16, and the snap-in strip 16 is snap-fitted and fixed to the snap-in groove.

[0047] When the first bottom plug-in column 6 and the second bottom plug-in column 7 are inserted into the first bottom plug-in groove 17 or the second bottom plug-in groove 18, the snap-in strip 16 can slide along the corresponding snap-in groove to limit the sliding of the first bottom plug-in column 6 and the second bottom plug-in column 7, thereby facilitating the plug-in and fixation between the bottoms of multiple cofferdam baffles 1, improving the stability of the multiple cofferdam baffles 1 during assembly, and facilitating the stable use of the cofferdam device.

[0048] Furthermore, if Figure 1-Figure 3As shown, the top locking assembly also includes a limiting component, which includes a limiting strip 14 installed around the inner wall of the top plug-in slot 13 and a limiting slot 15 opened around the outer wall of the top plug-in column 5, and the limiting strip 14 can be slidably inserted into the limiting slot 15.

[0049] When the top plug-in column 5 is inserted into the top plug-in groove 13, the limit bar 14 can slide along the corresponding limit groove 15 to limit the sliding between the top plug-in column 5 and the top plug-in groove 13, thereby ensuring the plug-in and fixation between the tops of multiple cofferdam baffles 1, further improving the stability of the multiple cofferdam baffles 1 during assembly, and facilitating the stable use of the cofferdam device.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A highway bridge construction cofferdam device, characterized in that: include: A cofferdam baffle (1), wherein two fixing seats (8) are symmetrically arranged on one side of the cofferdam baffle (1), and a connecting member and a fine-tuning assembly (9) are connected between the two fixing seats (8) and the cofferdam baffle (1); A splicing mechanism, the splicing mechanism comprising a top locking assembly and a bottom plug-in assembly for respectively connecting the tops and bottoms of a plurality of cofferdam baffles (1); The top locking assembly comprises top plug-in grooves (13) symmetrically arranged on both sides of the top of the cofferdam baffle (1) and a locking member arranged on the top of the cofferdam baffle (1), wherein the locking member can be inserted into the top plug-in grooves (13); The bottom plug-in assembly comprises a first bottom plug-in column (6) installed on one side of the bottom of the cofferdam baffle (1) and a first bottom plug-in groove (17) provided on the bottom of the cofferdam baffle (1) on one side relative to the first bottom plug-in column (6); a second bottom plug-in column (7) and a second bottom plug-in groove (18) are symmetrically arranged on one side of the cofferdam baffle (1) relative to the fine-tuning assembly (9); and the second bottom plug-in groove (18) is connected to the first bottom plug-in groove (17).

2. A highway bridge construction cofferdam device according to claim 1, characterized in that: The locking member comprises a mounting frame (2) mounted on the top of the cofferdam baffle (1) and a connecting plate (4) arranged in the mounting frame (2); a locking screw (3) is also screwed on the top of the cofferdam baffle (1), and the bottom end of the locking screw (3) extends into the mounting frame (2) and is rotatably connected to the top of the connecting plate (4); three top plug-in columns (5) are installed at the bottom of the connecting plate (4), and the top plug-in columns (5) are plugged and fixed to the top plug-in grooves (13).

3. A highway bridge construction cofferdam device according to claim 1, characterized in that: The bottom plug-in assembly also includes a snap-in component, which includes a snap-in strip (16) installed around the outer walls of the first bottom plug-in column (6) and the second bottom plug-in column (7), and the inner walls of the first bottom plug-in slot (17) and the second bottom plug-in slot (18) are both provided with snap-in slots corresponding to the snap-in strip (16), and the snap-in strip (16) is snap-fitted and fixed to the snap-in slot.

4. A highway bridge construction cofferdam device according to claim 1, characterized in that: The top locking assembly also includes a limiting component, which includes a limiting strip (14) installed around the inner wall of the top plug-in slot (13) and a limiting slot (15) opened around the outer wall of the top plug-in column (5), and the limiting strip (14) can be slidably inserted into the limiting slot (15).

5. A highway bridge construction cofferdam device according to claim 1, characterized in that: The connecting member comprises a first hinged seat (11) mounted on the side wall of the cofferdam baffle (1) and a second hinged seat (12) fixed on the top of the fixed seat (8), and a retractable reinforcing rod (10) is hingedly connected between the second hinged seat (12) and the first hinged seat (11).

6. A highway bridge construction cofferdam device according to claim 1, characterized in that: The fine adjustment assembly (9) comprises a mounting block (95) fixed on the side wall of the cofferdam baffle (1) and a fixing block (94) mounted on the fixing seat (8); a connecting rod (91) is hingedly connected inside the mounting block (95); and one end of the connecting rod (91) away from the mounting block (95) is rotatably connected to a sleeve (92); a screw rod (93) is mounted on one side of the fixing block (94) relative to the second hinge seat (12); a screw cavity is provided inside the sleeve (92), and one end of the screw rod (93) is screwed into the screw cavity.

7. A highway bridge construction cofferdam device according to claim 2, characterized in that: Three retractable linkage rods are also connected between the top of the connection plate (4) and the mounting frame (2), and the three linkage rods are distributed in a triangular shape.

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